Samson TROVIS 5400, Монтаж и эксплуатация, Страница: 62 / 120

Note :
An active system start-up is indicated in the operating level by the blinking symbol. Dur-
ing this operating phase, you cannot view the master or slave loop set points: in the operat-
ing level
– – – –
appears on the display at the corresponding places!
Parameters
WE Range of values
Pump advance running time for start-up 300 sec 0 to 900 sec
Start-up mode the outdoor temperature
is smaller 5 °C 0 to 10 °C
Control signal limit for Y1 100 % 0 to 100 %
Return air temperature minimum limit 70 °C Return air temperature maximum limit up to 100 °C
Supply air temperature minimum limit 26 °C Supply air temperature maximum limit up to 50 °C
6.11.2 Circulating air mode after system start-up
After the system start-up has finished, first the circulating air mode is run until the room or
exhaust air temperature set point (±0.5 °C) has been reached. This function can be selected
in systems with a mixed air chamber (Anl 2, Anl 4, Anl 8), with room or exhaust air temper-
ature control and in systems that have room cascade control or exhaust air cascade control.
Function WE Configuration
Circulating air mode after system start-up OFF Fb43 = ON
6.11.3 Enabling fan speed 1
Usually, the fan speed 1 is enabled over the binary output BA2 at the programmed start of
the time-of-use (times-of-use of the system). The system start-up has already been completed,
if necessary, at the time period set under
Pump advance running time for start-up before the
time-of-use starts. When a request for an externally required signal is issued, the fan speed 1
is possibly enabled with a delay due to the system start-up.
If the outdoor air/extract air damper is additionally to be controlled over BA2, it will be nec-
essary to determine in function block Fb11 that BA2 also remains activated when fan speed
2 is in operation.
In case of the malfunctions “system frost protection” or “missing fan feedback”, the fans are
deactivated immediately.
Parameter WE Range of values
Pump advance running time for start-up 300 sec 0 to 900 sec
62
EB 5477 EN
Control functions